dieffenbachia

My Uncle gave me a dieffenbachia a few years a ago and it generally does well. He passed away this year. We have moved and are renovating a house. It has been outside most of the summer. I lost a few of the leaves due to do much sun. This I know. I think it got to cold. It was under cover but now all of the leaves have fallen off. Is there hope? Can it live with no leaves?? Is there anything I can do to save it???